Normal convergence amplitudes are 38 prism diopters at near and 14 prism diopters at distance . In general, fusional convergence amplitudes of less than 15 to 20 prism diopters at near are a sign of convergence insufficiency.
19 окт. 2024 г.
12 сент. 2024 г. · The patient should sit down in a comfortable chair and look directly at the fixation object that is held at a distance of approximately 50 cm in ... |
Background: Nearpoint of convergence (NPC) values of 8 to 10 cm are widely used to diagnose binocular dysfunctions such as convergence insufficiency. |
Fusional Vergence Range (prism dioptres). Vertical, 2-3. Torsional, 2-3. Convergence, 15-20 distance; 25 near. Divergence, 6-10 distance; 12 near. Reviews. |
Normally, this distance should be around 6 centimeters or less. If you find it's significantly farther away, it could indicate convergence insufficiency. Eye Convergence · How is Convergence... |
In mathematics normal convergence is a type of convergence for series of functions. Like absolute-convergence, it has the useful property that it is preserved |
The range of normality for the vergence measures were: near point of convergence break, 5–10cm, recovery, 6–13cm, near lateral phoria, 2.5–6 prism dioptre (pd) ... |
The mean value for normal subjects was 13.06 (range, 8 to 32), and the mean for convergence insufficiency subjects was 22.03 (range, 9 to 32). This difference. |
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